Mudski GU Build Thread

[mudski]

The solenoid is just a coil with a sliding spool, when you hit the solenoid with the hammer you dislodge the interface between the spool and the coil, so unless the power is left on, which means you have a 'held start function' on the ign switch I cant see it related to be honest. Significant voltage drop though, 1 V. I killed a battery crossing the Simpson with a Finch Fridge, brand new, but the Finch has no thermostat on 12V, I arrived back in melb with a new Century wet cell at 2V - battery rooted, no warranty - would not think its a catastrophic all cell failure - look at the aux items connected I reckon.

I have no Aux items to the main battery so I'm sweet there.

If all the aux stuff is ok, then a common component failure is the alternator regulator diodes.

Can I test the alternator for that? Or if I run a test, like you mentioned a few weeks ago to me, and unplug the alternator and see if anything changes?

Edit : Just googled it. Lol

Can a bad diode in an alternator drain a battery?
A bad diode in the rectifier can allow current to pass the wrong direction through the circuit, even when the engine is no longer running. It's like the tap on a water jug that has a constant trickle, eventually depleting the resource it holds inside. It's called a parasitic draw or drain.